Remove std::string utf8
Remove std::string utf8

Not used consistently. Use in-place for comparison.

jsoref/PowerShell,daxian-dbw/PowerShell,JamesWTruher/PowerShell-1,TravisEz13/PowerShell,PaulHigin/PowerShell,kmosher/PowerShell,KarolKaczmarek/PowerShell,bmanikm/PowerShell,KarolKaczmarek/PowerShell,bmanikm/PowerShell,KarolKaczmarek/PowerShell,kmosher/PowerShell,jsoref/PowerShell,bmanikm/PowerShell,bingbing8/PowerShell,KarolKaczmarek/PowerShell,kmosher/PowerShell,jsoref/PowerShell,JamesWTruher/PowerShell-1,bingbing8/PowerShell,PaulHigin/PowerShell,bingbing8/PowerShell,daxian-dbw/PowerShell,jsoref/PowerShell,bingbing8/PowerShell,JamesWTruher/PowerShell-1,kmosher/PowerShell,kmosher/PowerShell,JamesWTruher/PowerShell-1,bingbing8/PowerShell,daxian-dbw/PowerShell,jsoref/PowerShell,KarolKaczmarek/PowerShell,TravisEz13/PowerShell,TravisEz13/PowerShell,bmanikm/PowerShell,TravisEz13/PowerShell,PaulHigin/PowerShell,bmanikm/PowerShell,daxian-dbw/PowerShell,PaulHigin/PowerShell